Receptacle-closure.



PATENTED NOV. 20, 1906.

W. W. CHRISTENSEN. REGEPTACLE GLOSURE.

LAPPLIOATION FILED MAR.8,1906.

. features of construction and combinations of WALTER w. CHRISTENSEN,

or CHICAGO, ILLINOIS.

IRECEPTACLE-CLOSURE.

Specification of Letters Patent.

Patented Nov. 20,1906. I

Application filed March a, 1906. berial Ia. 30mm.

To all whom it may concern: I

Be it known that I, WALTER W. Cnnrs- TENSEN, a citizen of the UnitedStates, residing at Chicago, in the county of Cook an State of Illinois,have invented certain new and useful Improvements in Receptacle-Closures; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

My invention relates to a novel construction in a receptacle-closuredesigned mainly for large-necked bottles, such as milkbottles,vaseline-bottles, and for jars such as are used by druggists and others,the object be ing to provide cheap and efficient means for hermeticallysealing such receptacle and provide means for readily removing thesealing medium without the use of tools of any description and withoutinjury of any kind to said sealing medium; and it consists in the partshereinafter fully described and claimed. In the accompanying drawings,illustrating my invention, Figure 1 is a top plan view of areceptacle-closure constructed 1n accordance with my invention. ig. 2 isa central vertical section of the same on the line 2 2 of Fig. 1. Fig. 3is a diagrammatic view showing the method of determining the mouthportions of receptacles to best adapt the same for my purposes.

My said inven"'on comprises two parts, each of which coacts with and isdependent upon the other to hermetically seal a bottle or otherreceptacle, said parts comprising the mouth portion of the receptacle,which is formed as hereinafter more particularly described, and acircular disk B, which may be made of cork, paper, or any other suitablematerial. The said mouth portion A of the receptacle is very slightlyflaring, the degree of taper of the inner wall thereof being suitablydetermined, as shown in Fig. 3 in which D is a line indicating the planeof the upper end of said tapered inner wall, E is an arc of radius equalto the largest radius of said tapered inner wall and having its centerat F in said plane D, and G is a cord intersecting said are in the planeI) and approximately fifteen to twenty degrees below the latter, saidcord G indicating the inner wall of said mouth ortion. The said arc Eindicates, substantially, the line of travel of the outermost edge ofthe disk when turned as indicated in dotslightly below the shape of tedlines in Fig. 2, and it will be apparent that when so turned the raIsededge will be forced is thus rendered sufficient to prevent sai disk Bfrom being readily forced through said mouth portion an excellentfrictional be firmly held therein. p

be thin or relatively heavy-that such thickness should exceed onetheradius thereof, said radius ent with the largest radius of said taperedinner wall. The receptacle is sealed by forcing the disk into said mouthA thereof to a depth preferably such that the upper face of said disklies in or the plane of the upper edge of said tapered inner wall. Toopen said receptacle, it is only necessary to press on said disk withthe finger adjacent its periphery, whereby it will be canted, asIndicated in dotted lines, Fig. 2, turning on approximately disk may isto say, eighth to one-sixth being coincid diametrically oppositelydisposed fulcrums,

which by reason of the taper of said inner wall, however, are not fixed,but will change their positions on the periphery of said disk as thecant thereof is increased or decreased. When the point in the peripheryopposite the point at which pressure is applied has been raisedsufficiently to permit the same to be easily grasped, it is removed andmay be easily relaced at will.

My said closure is well suited for milk-bottles, being more sanitary byreason of the absence of the shoulder on which the disks of bottles atpresent used are seated, and con sequently of the dirt-collecting cornerafforded thereby.

The rim II of the mouth of said receptacle may be and preferably isthreaded externally to receive a screw-cap J, adapted to protect thedisk against accidental injury or removal in shipment or handling and isdesigned to be employed on receptacles containing hospital supplies orother substances, as such ackages are frequently long instock andhandled a great deal. Said disk is preferably made of cardboard and iscoated with parai'iin, beeswax, or the like to render it moisture-proof.

I c aim as my invention 1. A receptacle-closure comprising incombination the mouth portion of the receptacle having aconically-tapered inner wall converging at its lower end, and a diskcorre- 18 at the same time somouth portion of the receptacle having a-mouthport10n-of the receptacle having a I sponding in diametersubstantially with the greatest diameter of said tapered inner wall, andadapted when pressure is applied thereto adjacent its periphery at onepoint, to be canted.

2. A receptacle closure comprising the conical inner wall converging atits lower end and a disk of relatively yielding material having agreater diameter than the smallest diameter of said tapered inner walland adapted to be forced into said mouth and held frictionally in placetherein, said disk being adapted to be turned on fulcrums disposed atsubstantially opposite points in its periphery upon applying pressureupon said disk at a conical inner wall converging at its lower end, anda disk of relatively yielding material corresponding in diametersubstantially with l po1nt adjacent its periphery.

the greatest diameter of said conical inner In testimony whereof I havesigned my wall of said mouth portion and adapted to be name in presenceof two subscribing wit- .nesses.

' WALTER W. CHRISTENSEN.

-Witnesses:

' RUDOLPH WM. Lorz,

E. F. WILSON.

point adjacent its periphery. 3. A receptacle-closure comprising "the l

